An alternative pathway of T-cell activation: a functional role for the 50 kd T11 sheep erythrocyte receptor protein.

A series of seven monoclonal antibodies was produced against the T-lineage-specific 50 kd T11 sheep erythrocyte rosette (SRBC) receptor protein in order to define the function of the molecule. Three distinct epitopes were detected: T11(1), the SRBC binding site expressed on all T lymphocytes and thy...

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Main Authors: Meuer, S, Hussey, R, Fabbi, M, Fox, D, Acuto, O, Fitzgerald, K, Hodgdon, J, Protentis, J, Schlossman, S, Reinherz, E
Format: Journal article
Language:English
Published: 1984
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author Meuer, S
Hussey, R
Fabbi, M
Fox, D
Acuto, O
Fitzgerald, K
Hodgdon, J
Protentis, J
Schlossman, S
Reinherz, E
author_facet Meuer, S
Hussey, R
Fabbi, M
Fox, D
Acuto, O
Fitzgerald, K
Hodgdon, J
Protentis, J
Schlossman, S
Reinherz, E
author_sort Meuer, S
collection OXFORD
description A series of seven monoclonal antibodies was produced against the T-lineage-specific 50 kd T11 sheep erythrocyte rosette (SRBC) receptor protein in order to define the function of the molecule. Three distinct epitopes were detected: T11(1), the SRBC binding site expressed on all T lymphocytes and thymocytes; T11(2), an epitope unrelated to the SRBC binding site but with a similar distribution; and T11(3), a neo-epitope expressed only upon T-cell activation. Simultaneous triggering of T11(2) and T11(3) epitopes by monoclonal antibodies induces T lymphocytes to proliferate and mediate their functional programs in the absence of antigen and/or antigen-presenting cells. This antigen-independent mode of triggering is distinct from that involving the T3-Ti antigen receptor complex and represents an alternate pathway of T-cell activation. Given that T11 is the earliest T-lineage surface glycoprotein to appear in thymic ontogeny and is thus expressed before T3-Ti, the former may be involved in clonal expansion and/or differentiation during early development.
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spelling oxford-uuid:397a142d-7ed3-4375-b734-04128fad632a2022-03-26T13:55:44ZAn alternative pathway of T-cell activation: a functional role for the 50 kd T11 sheep erythrocyte receptor protein.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:397a142d-7ed3-4375-b734-04128fad632aEnglishSymplectic Elements at Oxford1984Meuer, SHussey, RFabbi, MFox, DAcuto, OFitzgerald, KHodgdon, JProtentis, JSchlossman, SReinherz, EA series of seven monoclonal antibodies was produced against the T-lineage-specific 50 kd T11 sheep erythrocyte rosette (SRBC) receptor protein in order to define the function of the molecule. Three distinct epitopes were detected: T11(1), the SRBC binding site expressed on all T lymphocytes and thymocytes; T11(2), an epitope unrelated to the SRBC binding site but with a similar distribution; and T11(3), a neo-epitope expressed only upon T-cell activation. Simultaneous triggering of T11(2) and T11(3) epitopes by monoclonal antibodies induces T lymphocytes to proliferate and mediate their functional programs in the absence of antigen and/or antigen-presenting cells. This antigen-independent mode of triggering is distinct from that involving the T3-Ti antigen receptor complex and represents an alternate pathway of T-cell activation. Given that T11 is the earliest T-lineage surface glycoprotein to appear in thymic ontogeny and is thus expressed before T3-Ti, the former may be involved in clonal expansion and/or differentiation during early development.
spellingShingle Meuer, S
Hussey, R
Fabbi, M
Fox, D
Acuto, O
Fitzgerald, K
Hodgdon, J
Protentis, J
Schlossman, S
Reinherz, E
An alternative pathway of T-cell activation: a functional role for the 50 kd T11 sheep erythrocyte receptor protein.
title An alternative pathway of T-cell activation: a functional role for the 50 kd T11 sheep erythrocyte receptor protein.
title_full An alternative pathway of T-cell activation: a functional role for the 50 kd T11 sheep erythrocyte receptor protein.
title_fullStr An alternative pathway of T-cell activation: a functional role for the 50 kd T11 sheep erythrocyte receptor protein.
title_full_unstemmed An alternative pathway of T-cell activation: a functional role for the 50 kd T11 sheep erythrocyte receptor protein.
title_short An alternative pathway of T-cell activation: a functional role for the 50 kd T11 sheep erythrocyte receptor protein.
title_sort alternative pathway of t cell activation a functional role for the 50 kd t11 sheep erythrocyte receptor protein
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